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WO1999048293A1 - Systeme de videotelephonie sans fil - Google Patents

Systeme de videotelephonie sans fil Download PDF

Info

Publication number
WO1999048293A1
WO1999048293A1 PCT/DE1999/000485 DE9900485W WO9948293A1 WO 1999048293 A1 WO1999048293 A1 WO 1999048293A1 DE 9900485 W DE9900485 W DE 9900485W WO 9948293 A1 WO9948293 A1 WO 9948293A1
Authority
WO
WIPO (PCT)
Prior art keywords
cordless
screen unit
video
base station
handset
Prior art date
Application number
PCT/DE1999/000485
Other languages
German (de)
English (en)
Inventor
Stefan Kirner
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1999048293A1 publication Critical patent/WO1999048293A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display

Definitions

  • the invention relates to a system for cordless never Videotelefo ⁇ .
  • Today's video or video phones and multimedia terminals are corded, which means that they are permanently connected to an outside line.
  • the user In the field of telephony, the user has become used to mobile radio telephones and to so-called cordless telephones.
  • cordless telephones In order to offer the user the same advantages in freedom of movement when using videophones, videophones and online terminals with mobile, cordless handsets are expected shortly.
  • the TAE socket is integrated in a radio system based on the DECT standard.
  • the screen and the camera unit are still designed to be stationary or as corded stand-alone devices.
  • the customer this means that he is able to make pure voice calls with the usual cordless mobility.
  • Internet access, video calls and the like he has to go to the place where the video phone or online terminal is installed.
  • the invention has for its object to make video calls more comfortable for the user.
  • the system for cordless video telephony according to the invention is shown.
  • This system consists of three components, a base station BS, a screen unit BE and a mobile part MT.
  • the screen unit BE is used for reproducing the image in video telephony or when using the Sy ⁇ stems as Mutltimedia- or online terminal.
  • the screen unit BE has a monitor MN.
  • a camera KA For recording the images when performing a video teleconferencing ⁇ Fonats a camera KA is closed ⁇ attached to the display unit BE.
  • the camera KA can preferably form a structural unit with the screen unit BE.
  • the screen unit may BE for recording or playback of Audioda ⁇ th AD, i.e., speech signals, a microphone and a speaker MK 1 LP having first
  • a control for head tracking can be provided, belonging to the camera KA.
  • This control SK tracks, for example, the head of a moving user.
  • the control SK can also be designed with means that adapt the focal length of the camera KA to the distance of the user from the camera KA.
  • a mobile part MT is provided in the system according to the invention, which has a microphone MK 2 and a loudspeaker LP 2 for this purpose.
  • the mobile part MT can have a keyboard block TB and a display device AE.
  • the keypad TB for example, the phone number can be entered to establish a connection to a desired communication participant. 3 mer possible.
  • a selection of the monitor MN Frschir ⁇ my uniform BE websites shown possible.
  • the inventive system comprises a base station BS, for example, with cord is connected to a subscriber ⁇ ranschluß effet TAE.
  • One or more trunk lines, analog or digital, can be connected to the subscriber line TAE on the network side.
  • the base station BS is connected to the screen unit BE via a wireless audio-video connection. Audio data AD and video data VD for the implementation of, for example, a video call or for use as a multimedia terminal are transmitted over this route.
  • the mobile part MT is also connected wirelessly to the base station BS. Via this connection, audio data AD are transmitted for voice communication.
  • the radio connection between base station BS and display unit BE and mobile part MT can be designed according to a DECT or GSM-like standard.
  • Wireless channels for control and signaling are not explicitly specified.
  • a communication subscriber can be selected or controlled on the mobile part MT or the images displayed on the monitor MN can be controlled.
  • the screen unit BE has a control panel BF.
  • This surface is implemented, for example, by a so-called touchscreen.
  • a control channel (not shown in the figure) is provided between base station BS and screen unit BE, via which the associated operating data or commands are transmitted.
  • the commands for controlling the video telephony system or for function selection can be done via the keypad 4 TB on the handset MT or the control panel BF at the Schmschir ⁇ my uniform BE be entered.
  • a further keyboard block (not shown in the FIG) can also be provided on the screen unit BE.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système pour vidéotéléphonie sans fil, comprenant une unité écran (BE) avec des moyens de reproduction d'images (MN) et d'enregistrement d'images (KA), un élément mobile (MT) avec des moyens de reproduction audio (LP2) et d'enregistrement audio (MK2), une station de base (BS) qui est raccordée à un réseau de communication et à laquelle sont raccordés sans fil l'unité écran (BE) et au moins l'élément mobile (MT). Des moyens d'entrée d'instructions ou de sélection de fonctions (BF) sont prévus au niveau de l'unité écran (BE) et/ou (TB) au niveau de l'élément mobile (MT).
PCT/DE1999/000485 1998-03-16 1999-02-23 Systeme de videotelephonie sans fil WO1999048293A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811357 1998-03-16
DE19811357.9 1998-03-16

Publications (1)

Publication Number Publication Date
WO1999048293A1 true WO1999048293A1 (fr) 1999-09-23

Family

ID=7861062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000485 WO1999048293A1 (fr) 1998-03-16 1999-02-23 Systeme de videotelephonie sans fil

Country Status (1)

Country Link
WO (1) WO1999048293A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353445A (en) * 1999-06-30 2001-02-21 Nec Corp Method of transmitting images or speech to a device through a mobile communication unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242335A (en) * 1990-03-19 1991-09-25 Sony Corp Videophones
EP0641128A1 (fr) * 1993-08-30 1995-03-01 Alcatel SEL Aktiengesellschaft Système de communication pour transmettre des signaux d'image et de son
DE29601873U1 (de) * 1996-01-23 1996-07-04 Lindemann, Ulrich, 14199 Berlin Kombination von Computer und drahtloser Kommunikationseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242335A (en) * 1990-03-19 1991-09-25 Sony Corp Videophones
EP0641128A1 (fr) * 1993-08-30 1995-03-01 Alcatel SEL Aktiengesellschaft Système de communication pour transmettre des signaux d'image et de son
DE29601873U1 (de) * 1996-01-23 1996-07-04 Lindemann, Ulrich, 14199 Berlin Kombination von Computer und drahtloser Kommunikationseinrichtung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CARMINE A: "MULTIMEDIA OVER DECT: THE ENABLING TECHNOLOGY FOR MULTI -APPLICATIONDOMESTIC WIRELESS SYSTEMS", PTR PHILIPS TELECOMMUNICATION REVIEW, vol. 52, no. 4, 1 October 1995 (1995-10-01), Eindhoven, nl, pages 9 - 11, XP000545036 *
GAVER W W ET AL: "A VIRTUAL WINDOW ON MEDIA SPACE", HUMAN FACTORS IN COMPUTING SYSTEMS, CHI '95 CONFERENCE PROCEEDINGS. DENVER, MAY 7 - 11, 1995, 7 May 1995 (1995-05-07), KATZ I R ET AL (ED ), pages 257 - 264, XP000538454 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353445A (en) * 1999-06-30 2001-02-21 Nec Corp Method of transmitting images or speech to a device through a mobile communication unit
GB2353445B (en) * 1999-06-30 2004-05-12 Nec Corp Communication system and method capable of transmitting data to an object device through a mobile station
US6922568B1 (en) 1999-06-30 2005-07-26 Nec Corporation Communication system and method capable of favorably transmitting an image or a voice to an object device through a mobile station

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